Advertisements
Advertisements
Question
When you exercise in the morning, by considering your body as a thermodynamic system, which of the following is true?
Options
ΔU > 0, W > 0
ΔU < 0, W > 0
ΔU < 0, W < 0
ΔU = 0, W > 0
Advertisements
Solution
ΔU < 0, W > 0
APPEARS IN
RELATED QUESTIONS
Answer in brief.
Why should a Carnot cycle have two isothermal two adiabatic processes?
Heating a gas in a constant volume container is an example of which process?
Explain the cyclic process.
An ideal gas of volume 2 L is adiabatically compressed to (1/10)th of its initial volume. Its initial pressure is 1.01 x 105 Pa, calculate the final pressure. (Given ЁЭЫ╛ = 1.4)
Explain work done during a thermodynamic process.
Apply first law for an isobaric process.
Can the given heat energy be completely converted to work in a cyclic process? If not, when can the heat can completely converted to work?
An ideal gas is expanded isothermally from volume V1 to volume V2 and then compressed adiabatically to original volume V1. If the initial pressure is P1, the final pressure is P3 and net work done is W, then ____________.
In a certain thermodynamical process, the pressure of a gas depends on its volume as kV3. The work done when the temperature changes from 100°C to 300°C will be ______ nR, where n denotes number of moles of a gas.
Explain how can a gas be expanded at constant temperature.
