10. Objects in thermal contact will have same temperature. [ True / False ]

Q: How many joules of heat does 620 g of mercury require to go from a solid at -38.9 degrees celcius to…

A: Given,

Q: 6. Calculate the heat transfer of the following a. 2.4 kg of water to vapor

A: Mass of water, m = 2.4 kg Specific heat of water, s = 4200 J⋅kg-1⋅K-1 Temperature of water, Ti =…

Q: 9. In an experiment, a 0.220-kg piece of ceramic superconducting material at 15 °C is placed in…

A: The equation for the heat transfer is given by, Here, m, c and ΔT represent the mass of the ceramic…

Q: 10. Explain how the absorption of energy (heating) affects the speed of the particles in a…

A:

Q: 11. How much heat is absorbed as 7.56 g of ice is heated from -30.0°C to its normal melting point?

A: GivenMass = 7.56g = 7.56×10-3kgInitial temperature = -30°CFinal temperature = 0°Cmelting point of…

Q: 2) Suppose you store some 445kg of water to regulate the temperature in your shed. How much heat…

A:

Q: 1. How much energy is lost by 20 kg copper if it is cooled from 50°C to 30°C?

A: Mass of Copper = m = 20 kg Change in temperature = ∆T=50° C-30° C=20° C Specific heat of Copper = C=…

Q: 37. (1) One end of a 56-cm-long copper rod with a diameter of 2.0 cm is kept at 460°C, and the other…

A: Given : L=56 cm = 0.56 m Diameter = 2 cm = 0.02 m Area =πr^2=3.14*0.01*0.01=0.000314  ΔT= (460 -…

Q: 2. A newly constructed steel bridge has a length of 518 m. How much will its length change between…

A: Given, Length of the bridge, Lo = 518 m coefficient of thermal expansion of the steel, α = 11×10-6…

Q: 4. Heat is the quantity of kinetic energy absorbed or given off by a body.

A: Heat is the energy which flows due to temperature difference between two different objects. While…

Q: 1. Find the specific heat of a material, if it takes 142 kJ of heat to raise the temperature of 2.5…

A: Calculate the specific heat of the material.             Q=mC∆T142×103=2.5×C×80          C  =710…

Q: When a piece of aluminum foil is taken out of the oven and cools from 100°C to 50°C. What is the…

A:

Q: 8. By how much does the volume of an aluminum cube 5 cm on an edge increasc when the cube is heated…

A: Given data: Side length of cube, a=5 cm=0.05 m Temperature: Ti=100C; Tf=600C

Q: 13. Why are some kinds of thermal treatment sometimes called energy recovery or waste-to-energy…

A: Thermal treatment refers to the use of heat to treat and breakdown waste materials in a variety of…

Q: 5. Draw a particle diagram to the right of the heating curve demonstrating what is occurring on line…

A: This is a heating curve. The heating curve generally starts with a solid that follows liquid and gas…

Q: 24. If the pressure is tripled but the temperature is held constant, what will the volume of the…

A: According to Boyle's law at constant temperature pressure of a gas is inversely proportional to the…

Q: 13. How does a thermometer work

A:

Q: 3) Suppose you drop 100g of aluminum at a temperature of 90°C into 195g of water at 5°C. What is the…

A:

Q: 10) How much energy must be removed from a 200g block of ice to cool from 0°C to -30°C

A:

Q: 4) How much heat energy must be LOST to change the temperature of 3.2-kg of water from 5°C to -7°C ?

A: Given that, Mass of water = 3.2 kg Initial temperature = 5°C Final temperature = -7°C

Q: (11) Calculate the fractional change in volume (Dv/v) of an aluminum bar that undergoes a change in…

A:

Q: 11. Explain how the release of energy (cooling) affects the speed of the particles in a substance.

A:

Q: 28. A snugly fitting steel pipe circling the world would stand about 64 meters off the ground if its…

A: Given that the pipe expands 64 metres with 1° increase in temperature .

Q: 2. A thermometer reading 50 °C is taken outside where the temperature is 30 °C. Five minutes later…

A: given question based on newton's law of cooling.

Q: QUESTION 18 A ball of lead of mass 1kg drops from a height of 46 m, hits the floor and remains there…

A:

Q: 7- Using a gas thermometer with a constant volume to measure the temperature, the pressure at 0 C…

A:

Q: 11. If you want to find the latent heat of fusion, you take a cup with 0.755 kg of water at 30.0° C…

A:

Q: 1-What are the sources of errors in a thermocouple reading ?

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 10. If the coefficient of volume expansion of a given material is 2.3, find the change in volume…

A:

Q: 4. To a 1-kg sample of wood 10 Kcal of heat is added, and its temperature is found to rise from 20°C…

A: The heat required to raise the temperature of substance from T1 to T2 is given by,  Q=msT2-T1 Here,…

Q: We know that -40 °C corresponds to -40 °F. What temperature has the same value in both the…

A: Solution: given that, -40 °C corresponds to -40 °F.

Q: 3. What is the volume of a aluminum ball at 10°C if its volume at 160°C is 300cm3 ? Tiep

A: Given data: The initial temperature of the aluminum ball is, Tf= 10 0C The final temperature of the…

Q: 3. Compare and contrast between conduction, convection and radiation with examples. Conduction…

A:

Q: 3. Classify The following statement as a theory or a law:Heating the air in a hot-air balloon causes…

A: To find if the statement is a theory or law.

Q: 10) The temperature of a rigid (i.e., constant-volume), sealed container of gas with pressure 3 Pa…

A:

Q: 4. The amount by which unit length of a material increases when the temperature is raised one degree…

A: When we apply some heat to any material, its temperature rises. With the rise in the temperature,…

Q: 9. In an experiment, a 0.290-kg piece of ceramic superconducting material at 19 °C is placed in…

A:

Q: 2. Calculate the heat needed to heat up a 1 kg of silver from 30°C to 100°C. The specific heat of…

A:

Q: 8. Partial Melt. If 2x10° J of energy in terms of heat is transferred to 3 kg of ice at 0 °C, how…

A:

Q: .How much energy is required to change a 50-g ice cube from ice at -8°C to steam at 120°C?

A: Given that, Mass = 50 g Temperature of ice= -8°C Temperature of steam = 120°C

Q: 92. ao If the price of electrical energy is $0.10 per kilowatt · hour, what is the cost of using…

A: The volume of swimming pool containing water is, V=12.0×9.00×1.5V=162m3

Q: 5. Your 300 mL cup of coffee is too hot to drink when served at 90 °C. What is the mass of an ice…

A:

Q: How much heat is needed to change 2 kg of ice at -10°C to steam at 100°C?

A: Heat required is given by: Q = Q1 + Q2 + Q3 + Q4 Q1 = Heat required from -10 C ice to 0 C ice Q2 =…

Q: 2. Find AH for the heating of H2 (g) from 0.°C to 100°C, given C, = 29.066 – (0.8364 x 10-3T +…

A: Given  Cp = 29.066 -( 0.8364*10-3*T ) + 20.12*10-7*T2  Let  Cp = a +b*T +c*T2

Q: 5 Examples of situation or object that uses convection current

A: A convection current is a process in which the movement of energy from one place to another place.

Q: 17. Select ALL of the following that are scales for measuring temperature. O Celsius grams O kelvin…

A:

Q: 32. Suppose you are selling apple cider for two dollars a gallon when the temperature is 4.0 °C. The…

A: The change in volume is given by ∆V=βV0∆T where β= coefficient of expansion, V0= Initial volume, and…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.