• Question Tag: thermodynamics
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• ## Find the upstream Mach number if there is a entropy increase across the normal shock wave of $$220\,J/\left( {kg.K} \right)$$.

Find the upstream Mach number if there is an entropy increase across the normal shock wave of $$220\,J/\left( {kg.K} \right)$$.

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• ## What are the advantages of turbojet engine?

• 782 views
• ## The temperature distribution at a certain input of time in concrete slab during curing is given by $$T=3x^{2}+3x+16$$ where $$x$$ is in $$cm$$ and $$T$$ is in $$K$$. Find the rate of change of temperature with time. $$(\alpha=0.003\;cm^{2}/s)$$

The temperature distribution at a certain input of time in concrete slab during curing is given by $$T=3x^{2}+3x+16$$ where $$x$$ …

• 719 views
• ## The temperature field in a body varies according to the equation $$T(x,y)=x^{3}+4xy$$. Find the direction of  fastest variation in temperature at the point $$(1,0)$$.

The temperature field in a body varies according to the equation $$T(x,y)=x^{3}+4xy$$. Find the direction of  fastest variation in temperature …

• 832 views
• ## 3 kg of steam in a piston -cylinder device at 400 kPa and 175 degree Celsius undergoes a mechanically reversible , isothermal compression to a final pressure such that the steam becomes just saturated. What is the work required for the process.

3 kg of steam in a piston -cylinder device at 400 kPa and 175 degree Celsius undergoes a mechanically reversible …

• 757 views
• ## A paddle wheel is used for stirring a liquid contained in a tank supplied 6000 kJ of work and during the stirring operation the tank lost 1500 kJ of heat to the surroundings. If the tank and liquid are considered as a system what will be its change in internal energy.

A paddle wheel is used for stirring a liquid contained in a tank supplied 6000 kJ of work and during …

• 755 views
• ## In a cyclic process the net heat supplied is 70 kJ/s. What is the work obtained from the cycle?

In a cyclic process the net heat supplied is 70 kJ/s. What is the work obtained from the cycle?

• 741 views