A heated plate of area 1m2 on each side is held in a room in which air temperature is 20 - C- Plate was heated to a temperature of 70 - C- There was convective heat transfer between the wall- and air present inside- Rate of heat exchange between walls of room and plate is equal to-

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A heated plate of area $1 m^{2}$ on each side is held in a room in which air temperature is $20^{\circ} C$ . Plate was heated to a temperature of $70^{\circ} C$ . There was convective heat transfer between the wall, and air present inside. Rate of heat exchange between walls of room and plate is equal to,

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Solution

The correct option is C None of these
To determine the heat exchange between plate and wall we need to know the wall temperature which is unknown. Wall temperature is not equal to temperature of air inside because there is convective heat transfer between wall and air.

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A heated plate of area 1m2 on each side is held in a room in which air temperature is 20 ∘C. Plate was heated to a temperature of 70 ∘C. There was convective heat transfer between the wall, and air present inside. Rate of heat exchange between walls of room and plate is equal to,

The correct option is C None of theseTo determine the heat exchange between plate and wall we need to know the wall temperature which is unknown. Wall temperature is not equal to temperature of air inside because there is convective heat transfer between wall and air.

The correct option is C None of these
To determine the heat exchange between plate and wall we need to know the wall temperature which is unknown. Wall temperature is not equal to temperature of air inside because there is convective heat transfer between wall and air.