Home
Class 11
PHYSICS
If a refrigerator's door is kept open, w...

If a refrigerator's door is kept open, will the room become cool or hot ? Explain.

Text Solution

Verified by Experts

If a refrigerator.s door is kept open, then room will become hot, because the refrigerator exhaust more heat into the room than earlier.
Promotional Banner

Topper's Solved these Questions

  • THERMODYANMICS

    KUMAR PRAKASHAN|Exercise Section-D Ncert Exemplar Solution (Short Answer )|6 Videos

  • THERMODYANMICS

    KUMAR PRAKASHAN|Exercise Section-D Ncert Exemplar Solution (Long Answer )|5 Videos

  • THERMODYANMICS

    KUMAR PRAKASHAN|Exercise Section-D Ncert Exemplar Solution (MCQs More than one option )|5 Videos

  • THERMAL PROPERTIES OF MATTER

    KUMAR PRAKASHAN|Exercise Question Paper (Section - D) (Answer following in brief :) Each carry 4 marks|1 Videos

  • UNITS AND MEASUREMENT

    KUMAR PRAKASHAN|Exercise Section -F (Questions from Module )|20 Videos

Similar Questions

Explore conceptually related problems

If the door of a refrigerator is kept open in a room, will it make the room warm or cool ?

If the coefficient of performance of a refrigerator is 5 and operates at the room temperature (27^@C) , find the temperature inside the refrigerator.

The temperature inside a refrigerator is t_2^@C and the room temperature is t_1^@C . The amount of heat delivered to the room for each joule of electrical energy consume ideally will be _____

Cut pieces of beetroot do not leave the colour in cold water but do so in hot water. Explain.

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

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

Assertion: A room can be cooled by opening the door of a refrigerator in a closed room. Reason: Heat flows from lower temperature to higher temperature.

Are rate of heat emission and rate of cooling same ? Explain this.

Refrigerator is an apparatus which takes heat from a cold body, work is done on it and the work done together with the heat absorbed is rejected to the source. An ideal refrigerator can be regarded as Carnot's ideal heat engine working in the reverse direction. The coefficient of performance of refrigerator is defined as beta = ("Heat extracted from cold reservoir")/("work done on working substance") = (Q_(2))/(W) = (Q_(2))/(Q_(1)- Q_(2)) = (T_(2))/(T_(1) - T_(2)) A Carnot's refrigerator takes heat from water at 0^(@)C and discards it to a room temperature at 27^(@)C . 1 Kg of water at 0^(@)C is to be changed into ice at 0^(@)C. (L_(ice) = 80"kcal//kg") How many calories of heat are discarded to the room?

Refrigerator is an apparatus which takes heat from a cold body, work is done on it and the work done together with the heat absorbed is rejected to the source. An ideal refrigerator can be regarded as Carnot's ideal heat engine working in the reverse direction. The coefficient of performance of refrigerator is defined as beta = ("Heat extracted from cold reservoir")/("work done on working substance") = (Q_(2))/(W) = (Q_(2))/(Q_(1)- Q_(2)) = (T_(2))/(T_(1) - T_(2)) A Carnot's refrigerator takes heat from water at 0^(@)C and discards it to a room temperature at 27^(@)C . 1 Kg of water at 0^(@)C is to be changed into ice at 0^(@)C. (L_(ice) = 80"kcal//kg") What is the work done by the refrigerator in this process ( 1 "cal" = 4.2 "joule" )