A refrigerator was kept in a room and its door remained open. What will happen to the room temperature after one night?

Q: The work done in changing volume of a gas from 1.5 m' to 6.7 m' in an isobaric process (at constant…

A: SOlution: Given that V1 = 1.5 m3 V2 = 6.7 m3 Q = 10.5x105 J

Q: A woman expends 95 kJ of energy walking a kilometer. The energy is supplied by the metabolic…

A: Given data: The energy spend by walking is E=95 kJ/km. The efficiency is η=35%. The enthalpy of…

Q: A passive solar house that is losing heat to the outdoors at 3°C at an average rate of 50,000 kJ/h…

A:

Q: Suppose the amount of air in a person's lungs is 1.9 L. Calculate the number of moles of air…

A: We assume that air is an ideal gas . Now we will use ideal gas equation that is PV= nRT ,where P is…

Q: why does it take longer to cook a large 400g pizza than a small 150g pizza

A: 400 g and 150 g

Q: u blow up a balloon and release it, it flies around the room. What is happening to the air in the…

A: When you blow up a balloon and release it, it flies around the room

Q: What is the difference between a refrigerator and an air conditioner?

A:

Q: A woman jogging has a metabolic rate of 625 W. (a) Calculate her volume rate of oxygen consumption…

A: Part A:

Q: what happen when a system undergoes a process

A: What happen when system undergoes a process

Q: 100 calories while walking a mile at a fairly brisk pace. How many miles per day would an average…

A: Brick pace means 100 steps per minute or 3 to 3.5 miles per hour Let consider 1 miles per hour…

Q: An airplane passenger has 100cm3 of air in his stomach just before the plane takes off from a…

A: Given:Volume,Vi=100×10-6 m3Prssure,Pi=pa=1.01×105 paPressure drop,Pf=7.50×104 paFind volume will the…

Q: Dietary guidelines suggest an intake of about 1929 food calories per day for an adult human. There…

A:

Q: In a thermodynamic process, 20 Joules are removed from a system as heat, and 30 Joules are added as…

A: The 1st law of thermodynamics implies the conservation of energy. It states that for a system in…

Q: Describe how entropy is decreased by bringing a substance from a gas, to a liquid, and finally to a…

A: Entropy is an extensive thermodynamic property that is a measure of a system's thermal energy per…

Q: Which of the following statements is correct for the process shown in the PV diagram below? A.…

A:

Q: When thermal energy is transferred from a hot object to a cold object, the overall entropyA.…

A: Heat transferred to hot to  cold object

Q: Gas with volume of 5 L (litre) and under pressure 10 kPa, is subjected to isothermal transformation.…

A: Given:- P1= 10 kPa V1 = 5 L V2 = 15 L

Q: A steam turbine takes in steam at a temperature of 400 oC and releases steam to the condenser at a…

A: temperature of the steam intaken = 400 C  = 673 K temperature of the steam released = 120 C  = 393 K…

Q: A balloon is slowly heated so that the pressure does not change. If it was initially at 10 K and had…

A:

Q: An electric blender is used to grind soya beans. The blender runs for 5 minutes, and the power…

A: Given, Running time (T) = 5 minute Power consumption = 100 W Heat loss = 20 W

Q: Gas with volume of 5 L (litre) and under pressure 10 kPa, is subjected to isothermal transformation.…

A: From ideal gas law, in an isothermal pressure the pressure and volume are related as:

Q: A refrigerator consumes 500 Joules electrical energy and removes 1000 Joules heat from the food…

A: Given data Q2=1000 J W=500 J

Q: In computing the thermal efficiency of a heat engine, which thermodynamic property does NOT need to…

A: The efficiency of a heat engine (Eff) is defined to be the engine’s net work output W divided by…

Q: What is the difference between a refrigerator and a heat pump?

A: Refrigerator is used to freeze or chill the substances by maintaining low temperature in a freezer.…

Q: What do modern car engines have in their cooling system to prevent the loss of coolant?

A: What do modern car engines have in their cooling system to prevent the loss of coolant

Q: The zeroth law of thermodynamics allows us to measure: * Temperature Kinetic energy Specific heat…

A: According to zeroth law of thermodynamics, if two systems are each in thermal equilibrium with a…

Q: The pressure rise associated with gases in a compressor causes the gas temperature to increase as…

A: The pressure rise associated with gases in a compressor causes the gas temperature to increase as…

Q: 35. A heat engine functions with 70.7 percent thermal efficiency and consumes 12.0 kJ from heat…

A: Given: Heat engine functions with 70.7% thermal efficiency It consumes 12.0 kJ Efficiency is raised…

Q: What are the advantages and disadvantages of using a solar cooker? Are there places where solar…

A: Solar cooker heats and cook food using the solar energy. It is a renewable energy source. It's yours…

Q: What changes would allow your refrigerator to use less energy to run?

A: A refrigerator is a kind of a heat pump. A heat pump extracts the heat from a cold reservoir with…

Q: What Is The Difference Between Statistical Thermodynamics And Chemical Thermodynamics?

A: Classical Thermodynamics: This branch studies the relationships between the State functions of the…

Q: pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal. When sleeping, the…

A: given that    the average adult burn about 0.42 Cal/h for every pound of body weight during sleep if…

Q: 120 g aluminum calorimeter contains 250 g of water having a temperature of 70. A 50 g piece of ice…

A: Let we consider final temperature of mixture=TSo , heat release by 250 g water of temperature…

Q: There is a 3 Liter container of an and 800 K. It is Compressed to 1.61 1:ters and Coo led to 276K…

A:

Q: f you run a refrigerator in a closed room with the refrigerator door open, the room temperature will

A: A refrigerator is a heat engine it extracts heat from low temperature reservoir and transfer it to…

Q: 34) When water at 0°C freezes, the entropy of the water A) increases. B) remains constant. C)…

A: Solution:

Q: An 1800-Watt hair dryer is used for 15.0 minutes. How much energy was used in kilo-calories (food…

A:

Q: Because of its metabolic processes, your body continually emits thermal energy. Suppose that the air…

A: From the metabolic rate, we will find the total thermal energy, and then using calorimetry, we will…

Q: Rank the temperatures of one mole of an ideal gas at different points identified on the PV diagram…

A:

Q: he temperature of a cup of water drops by 44oF when it is placed in a refrigerator for 45 minutes.…

A: Given: The change in temperature at the Fahrenheit scale is 44 oF. The time taken by the…

Q: Kurdapya, a grade 12 STEM student is helping her sister solve this problem. How fast is an oxygen…

A: Obtain the values of mass and kinetic energy of oxygen.

Q: A gas is compressed by an isothermal process that decreases its volume by a factor of 2. In this…

A: Given data The decrease in the volume is V1V2=2 The isothermal process is the process in which the…

Q: In the room, the average temperature is around -53 degree celcius and atmospheric pressure is…

A: Step 1It is given that

Q: What makes the behavior of water anomalous? * From zero to four degrees Celsius, the volume of water…

A: First of all, we have to understand the meaning of anomalous behavior of water,   1. Water occupies…

Q: The volume of a gas exiting a delivery device is 0.2 liters at a temperature of 150C. The gas then…

A: