100-problems-with-choices

# Assuming compression is according to the law pv

• 8

72. Assuming compression is according to the law PV= constant. Calculate the initial volume of gas at a pressure of 2 bar which will occupy a volume of 6 cubic meters when it is compressed to a pressure of 42 bar. 73. How muc heat, kJ, must be transferred to 20 kg of air to increase the temperature from 20 o C to 280 o C I the pressure is maintained constant. a. 2500 b. 2050 c. 5200 d. 5500
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