Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Air is initially at 260^(@)C and 700pa and occupied 0.028m^(3). The air is expanded at constant pressure to 0.084 m^(3). A polytropic process with n=1.5 is then carried out followed by a constant temperature process which complete the cycle. (a) sketch cycle in P-V. (b) find heat received and heat rejected in the cycle. (c ) efficiency of cycle.

Air is initially at 260^(@)C and 700pa and occupied 0.028m^(3). The air is expanded at constant pressure to 0.084 m^(3). A polytropic process with n=1.5 is then carried out followed by a constant temperature process which complete the cycle. (a) sketch cycle in P-V. (b) find heat received and heat rejected in the cycle. (c ) efficiency of cycle.

Cubical expansivity of benzene =1.2xx10^(-3)K^(-1) Cubical expansivity of wood =1.5xx10^(-4)K^(-1) Density of wood at 0^(@)C=8.8xx10^(2)kgm^(-3) find the change in temperature at which wood will just sink in benzene. Density of benzene at 0^(@)C=9xx10^(2)kgm^(-3) Using the following data