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temperature of 87 0 C, how many moles of gas do i have? If I have 7.7 moles of gas at a pressure of 0.09 atm and at a temperature of 56 O C, what is the volume of the container that the gas is in? 1.3. of 400 K

temperature of 87 0 C, how many moles of gas do i have? If I have 7.7 moles of gas at a pressure of 0.09 atm and at a temperature of 56 O C, what is the volume of the container that the gas is in? 1.3. of 400 K

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Activity 7 Number 1.3 only
Activity #7 PROBLEM SOLVING ACTIVITY: IDEAL GAS LAW 1. Solving ldeal Gas Law Problems Directions: Use the ideal gas law, "PV-nRT", and the universal gas constant R = 0.0821 L*atm to solve the following problems: K*mol If pressure is needed in kPa then convert by multiplying by 101.3kPa / 1atm to get R =8.31 kPa*L/ (K*mole). Show your answers legibly, concisely, and completely. Use separate sheet of paper. 1.1. If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? If I have an unknown quantity of gas at a pressure of 1.2 atm, a volume of 31 liters, and a temperature of 87 0 C, how many moles of gas do I have? If I have 7.7 moles of gas at a pressure of 0.09 atm and at a temperature of 56 0 C, what is the 1.2. 1.3. volume of the container that the gas is in? 1.4. If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K, what is the pressure inside the container? 2. Directions: Solve the following heat engine work done related problems. 1. During a cyclic process, a heat engine absorbs 350 J of heat from a hot reservoir, does work and ejects an amount of heat 100 J into the surroundings (cold reservoir). Calculate the efficiency of the heat engine? 2. A steam engine boiler is maintained at 250°C and water is converted into steam. This steam is used to do work and heat is ejected to the surrounding air at temperature 300K. Calculate the maximum efficiency it can have?
Transcribed Image Text:Activity #7 PROBLEM SOLVING ACTIVITY: IDEAL GAS LAW 1. Solving ldeal Gas Law Problems Directions: Use the ideal gas law, "PV-nRT", and the universal gas constant R = 0.0821 L*atm to solve the following problems: K*mol If pressure is needed in kPa then convert by multiplying by 101.3kPa / 1atm to get R =8.31 kPa*L/ (K*mole). Show your answers legibly, concisely, and completely. Use separate sheet of paper. 1.1. If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? If I have an unknown quantity of gas at a pressure of 1.2 atm, a volume of 31 liters, and a temperature of 87 0 C, how many moles of gas do I have? If I have 7.7 moles of gas at a pressure of 0.09 atm and at a temperature of 56 0 C, what is the 1.2. 1.3. volume of the container that the gas is in? 1.4. If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K, what is the pressure inside the container? 2. Directions: Solve the following heat engine work done related problems. 1. During a cyclic process, a heat engine absorbs 350 J of heat from a hot reservoir, does work and ejects an amount of heat 100 J into the surroundings (cold reservoir). Calculate the efficiency of the heat engine? 2. A steam engine boiler is maintained at 250°C and water is converted into steam. This steam is used to do work and heat is ejected to the surrounding air at temperature 300K. Calculate the maximum efficiency it can have?
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