A sample of a serum of mass 26.6 g is cooled from 290 K to 275 K at constant pressure by the extraction of 1.05 kJ of energy as heat. Calculate q and ΔH and estimate the heat capacity of the sample. report here the heat capacity = ________ J/k/g.  3 sig. number

Q: The complete combustion of solid fumaric acid, HOOCCH=CHCOOH, in a bomb calorimeter released 1333 kJ…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: THE PRESSURE IN THE SUBSTANCE DRASTICALLY DECREASE FROM 354 TO 21 POUNDS PER SQUARE INCHES (PSI),…

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Q: An oxyacetylene flame is often used in the welding of metals. Estimate the flame temperature…

A: The difference between the enthalpy formation of products and reactants is known as enthalpy of…

Q: Instead of cooling at constant pressure, if ‘X’ was expanded reversibly and at a constant…

A: Given - Mass of the ideal gas X = 1100 grams Molar mass of the ideal gas X = 28 g.mol-1 Specific…

Q: Consider a closed, isolated system that consists of two substances 1 and 2 that both have constant…

A: The system is practically impossible because:  Reason 1 ::  According to Clawcius statement it is…

Q: Calculate DH and DStot when two copper blocks, each of mass 10.0 kg, one at 100°C and the other at…

A: m = 10 kg = 10000 g s = 0.385 J.K−1.g−1 T1 = 100 oC = 373 K T2 = 0 oC = 273 K

Q: How much heat is required to raise the temperature of 235.42 g of water from 22.5 °C to 96.2 °C?…

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Q: An average human produces about 10 MJ of heat each day through metabolic activity. If a human body…

A: According to the equation: Temperature rise can be calculated as:

Q: To properly determine the internal energy of combustion methylhydrazine, the calorimeter was first…

A: Given the temperature change, ∆T = 1.98 K Mass of sucrose ignited = 0.4500 g  Molar mass of sucrose…

Q: Using the data below, calculate ∆Hrxn for: HCl(aq) + NH3(aq) ® NH4Cl(aq) The reaction of 50.0 mL of…

A: The heat absorbed by the NH4Cl solution is equal to the heat released by the reaction. The heat…

Q: a) A 1.60 dm3 sample of a mixture of methane gas, CH4 and oxygen gas, measured at 25 oC and 101 kPa,…

A: it is thermodynamics problem. combustion means complete oxidation of one mole of substance.

Q: he n-butane is converted into isobutane in an isomerization reactor, which operates isothermally at…

A: Isomerization, the chemical process by which a compound is transformed into any of its isomeric…

Q: 21.6 g of an acidic solution was mixed with 60.4 g of water in a calorimeter with a calorimeter…

A:

Q: 10.5 g of methanol was placed in a bomb calorimeter (with a known heat capacity of 0.874 kJ/K-1),…

A: Given: mass of methanol=10.5 gmass of water=3.25 kgheat capacity=0.874 kJ/K-1∆Ho=-715.0…

Q: From the data in the table below, calculate A,H and A,U (in kJ•mol ) for the reaction C(s,graphite)…

A: Given, At 298 K, ∆fH0 = 131.29 KJ / mole At 439 K, ∆fH0 = 133 KJ / mole

Q: In an experiment, the combustion of a food was used to determined the caloric content of the food.…

A: Heat capacity of calorimeter has units of KJ/°C. It is calculated as shown in the following step.

Q: The standard enthalpy of combustion, A H; , of graphite is -393.51 kJ mol1. Calculate the change in…

A:

Q: A sample of methylhydrazine (rocket fuel) weighing 1.500 g was ignited in a bomb calorimeter…

A: First we have to calculate the calorimeter constant of the calorimeter by using the combustion data…

Q: 1.5-mol ideal gas initially at 220 K is compressed reversibly and adiabatically from 45.0 L to 15.0…

A: The final temperature of the ideal gas considered can be calculated using the Poisson equation for…

Q: Calculate ∆Hrxn in kJ/mol of NaOH, if the initial temperature is 25.00 oC and the final temperature…

A: Given, the initial temperature = 25.00 oC The final temperature = 31.22 oC The volume of HCl = 100…

Q: 75.1 g of a basic solution was mixed with 32.5 g of water in a calorimeter with a calorimeter…

A: Using the relation Q=mcΔT  we can determine q for mixing process.

Q: For Water at 15 bar and 400°C What is the specific internal energy in kJ/kg?

A:

Q: The standard enthalpy of combustion, A H , of graphite is -393.51 kJ mol-1. Calculate the change in…

A: Given :  Enthalpy of combustion of graphite = -393.51 KJ/mol

Q: 2. The constant pressure molar heat capacity of nitrogen, N2, has been found to vary with…

A:

Q: Calculate AH and AStot when two copper blocks, each of mass 10.0 kg, one at 100°C and the other at…

A: Here, Mass of each block = (M1) = (M2) = 10 kg×1000g1K…

Q: 21.7 g of a basic solution was mixed with 87.6 g of water in a calorimeter with a calorimeter…

A:

Q: The Debye temperature of LiCl, OD, is 425K, calculate its molar heat capacity, Cy, at 5 K and at 500…

A: The Debye temperature of LiCl(QD) = 425 K

Q: Nitrogen gas stored in a flexible container expanded from a volume of 500 dm3 to a volume of 600 dm3…

A: Given that: Volume(V1) = 500dm3 Expanded Volume (V2) = 600dm3 External pressure (P) = 101.3 kPa =…

Q: 1.0 M NaOH solution at 18.0°C is mixed with 50.00 mL of 1.0 M HCI solution also at 18.00°C in a…

A: The reaction between HCl and NaOH is a neutralization reaction.heat is released in this reaction.…

Q: 1. Real-life heat Capacity is temperature dependent. Consider the formation of water vapor H2(g)+(…

A: Given: Cp=a+bT+CT-2 ∆H298 K=-60 kCal

Q: Calculate ΔStot when two iron blocks, each of mass 10.0 kg, one at 100 °C and the other at 25 °C,…

A: Given: The mass of each iron block is 10.0 kg. The temperature of each iron block is 100°C and 25°C.…

Q: 1.) 3 BTU OF HEAT ENERGY WAS REMOVED FROM A SYSTEM. THE SYSTEM WAS COMPRESSED AT A CONSTANT PRESSURE…

A: Given that: pressure = 1770.8 torr Volume, V1 = 1000mL Volume, V2 = 12.15gallons To find: work…

Q: The standard enthalpy of formation of ethylbenzene is –12.5 kJ mol-1 Calculate its standard enthalpy…

A:

Q: A laboratory animal exercised on a treadmill, which, through pulleys, raised a mass of 200 g through…

A: Given information: Mass (m) = 200 g Heat (q) = 5.0 J Height (h) = 1.55 m

Q: A bomb calorimeter was calibrated by burning 0.610g benzoic acid. The temperature of calorimeter was…

A: Heat capacity of calorimeter can be calculated using formula: Q = m.C.∆T Where, Q = heat absorbed or…

Q: Calculate q, w, AE, and AH for the process in which 87.4 g of nitrous oxide gas (N₂O) is cooled from…

A:

Q: A quantity of 4.275 g of an organic compound with a molecular formula C₁2H₂2 was burned in a…

A: we have to calculate the molar heat of combustion

Q: For an ideal gas if the specific internal energy at a specific pressure and temperature of 20 C is…

A: Given for an ideal gas the specific internal energy at specific pressure and temperature of 20 0C is…

Q: Heat is transferred to 4 kg of saturated water at a constant pressure of 600 kPa until its…

A:

Q: 33.6 g of a salt solution was mixed with 27.5 g of water in a calorimeter with a calorimeter…

A: Given: Mass of salt = 33.6 g Mass of water = 27.5 g Calorimeter constant = 66.5 J/K. Initial…

Q: The specific heat capacities (in units of J/g•K) of V, W, and Zn are 0.489, 0.132, and 0.388,…

A: We have to tell which option is correct from given choices of options by telling correct order of…

Q: 0.00 mL of 1.0 M NaOH solution at 18.0°C is mixed with 50.00 mL of 1.0 M HCI solution also at…

A: Volume of NaOH = 50 mL Volume of HCl = 50 mL Total volume of solution = 100mL Density of mixture =…

Q: 1 kg of Air was heated at constant temperature from 0.03 m3 and 101 kPa to 0.01 m3. By how much did…

A: An ideal gas equation is derived from the combination of Charle's law, Boyle's law, and Avogadro…

Q: 375kg/min of propane (44kg/kmol) combusts in a boiler, how much steam can it produce if it is 100%…

A: This will be done by the stoichiometric calculation. Steam produced by 375 kg/min of propane ->…

Q: Calculate the heat change of the combustion of 1.78 g benzoic acid (C6H5COOH) in a constant-volume…

A: C6H5COOH +152O2→7CO2+3H2Ol ∆ng=7-172=-32∆H=∆U+∆ngRTmoles of benzioc acid=1.78122.12…

Q: A bomb calorimeter was calibrated by burning 0.610 grams of benzoic acid. The temperature of the…

A:

Q: A gas expands against a variable opposing pressure given by P = 10/V atm, where V is the volume of…

A: Change in internal energy of a system is given by the expression: ∆E=W + q where W is work done and…

Q: 3 BTU OF HEAT ENERGY WAS REMOVED FROM A SYSTEM. THE SYSTEM WAS COMPRESSED AT A CONSTANT PRESSURE OF…

A: Energy transferred can be calculated in the form of work done. This energy is either transferred to…