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A piston cylinder closed system expands from state 1 to state 2 due to heat addition and then is compressed from state 2 to state 3. If this process (1-2-3) is a cycle, what can be said about Temperature (T) and Pressure (P)?
a. T1 > T3, and P1=P3
b. T1 < T3, and P1=P3
c. T1 = T3, and P1>P3
d. T1 = T3, and P1=P3
e. T1 = T3, and P1
4. An electrical resistance heating element in a hot pot consumes 0.50 kW. If this element runs for 2 hours determine the amount of electrical energy used in kWh?
5. An electrical resistance heating element in a hot pot consumes 0.50 kW. If this element runs for 2 hours determine the amount of electrical energy used in units of kJ?
6. A heater is used to raise the temperature of a Thermodynamics classroom by 5.0 o C. Express this temperature rise in units of Kelvin,?
7. A heater is used to raise the temperature of a Thermodynamics classroom by 5.0 oC. Express this temperature rise in units of in oF,?
8. A heater is used to raise the temperature of a Thermodynamics classroom by 5.0 oC. Express this temperature rise in units of Rankine?
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