If the co-efficient of perormance of a refrigerator is 5 and operates at the room temperature `(27^@C)`, find the temperature inside the refrigerator.

Estimate the average thermal energy of a helium atom at room temperature (27 ^@C)

Define temperature co-efficient of sound.

A heating element using nichrome connected to a 230 V supply draws an initial current of 3.2 A which settles after a few seconds to a steady value of 2.8 A. What Is the steady temperature of the heating element If the room temperature is 27.0^@C ? Temperature coefficient of resistance of nichrome averaged over the temperature range involved is 1.70 xx 10^-4@C .

One gram of ice at 0^@C is aded to 5 gram of water at 10^@C . Final temperature of the mixture is

CO_2 is gas but SiO_2 is solid at room temperature. Why?

When was the patient's temperature 38.5^(@)C ?

At room temperature (27.0^@ C) the resistance of a heating element is 100 Omega . What is the temperature of the element if the resistance is found to be 117 Omega , given that the temperature coefficient of the materials of the resistors is 1.70 xx 10^-4 ^@C^-1 ?

A refrigerator isto maintain eatables kept inside at 9^@C . If room temperature is 36^@C , calculate the coefficient of performance.