1
GATE ME 2013
+1
-0.3
A cylinder contains $$5\,\,{m^3}$$ of an ideal gas at a pressure of $$1$$ bar. This gas is compressed in a reversible isothermal process till its pressure increases to $$5$$ bar. The work in $$kJ$$ required for this process is
A
$$804.7$$
B
$$953.2$$
C
$$981.7$$
D
$$1012.2$$
2
GATE ME 2011
+1
-0.3
The contents of a well-insulated tank are heated by a resistor of $$23\Omega$$ in which $$10A$$ current is flowing. Consider the tank along with its contents as a thermodynamic system. The work done by the system and the heat transfer to the system are positive. The rates of heat $$(Q),$$ work $$(W)$$ and change in internal energy $$\left( {\Delta U} \right)$$ during the process in $$kW$$ are
A
$$Q=0, W=-2.3,$$ $$\Delta U = + 2.3$$
B
$$Q = + 2.3,\,\,W = 0,\,\,\Delta U = + 2.3$$
C
$$Q = - 2.3,\,\,W = 0,\,\,\Delta U - 2.3$$
D
$$Q = 0\,\,W = + 2.3,\,\,\Delta U - 2.3$$
3
GATE ME 2011
+1
-0.3
A pump handling a liquid raises its pressure from $$1$$ bar to $$30$$ $$bar.$$ Take the density of the liquid as $$990$$ $$kg/{m^3}$$. The isentropic specific work done by the pump in $$kJ/kg$$ is
A
$$0.10$$
B
$$0.30$$
C
$$2.50$$
D
$$2.93$$
4
GATE ME 2011
+1
-0.3
Heat and work are
A
intensive properties
B
extensive properties
C
point functions
D
path functions
GATE ME Subjects
EXAM MAP
Medical
NEET