Correct answer
D. All A., B. & C.
Explanation
The correct answer is All A., B. & C..
Gaseous diffusivity at atmospheric pressure is of the order of ________ cm2/second?
In the constant rate period of the rate of drying curve for batch drying,________?
On mixing 56 gm of CaO with 63 gm of HNO3, the amount of Ca(NO3)2 formed is ________ gm?
Pick out the wrong statement?
Energy consumed for crushing one ton of material ranges from ________ kWh?
The thermal efficiency of a reversible heat engine operating between two given thermal reservoirs is 0.4. The device is used either as a refrigerator or as a heat pump between the same reservoirs. Then the coefficient of performance as a refrigerator (COP)R and the co-efficient of performance as a heat pump (COP)HP are ________?