The heat energy required to raise the temperature of 20 kg of water from 25 °C to 75 °C is (in calories) ………………… 

Monjur Alahi

The heat energy required to raise the temperature of 20 kg of water from 25 °C to 75 °C is (in calories) ………………… 

A) 103 

B) 104 

C) 105 

D) 106


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Correct option is  D) 106

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
How much heat is required to raise temperature of 750 g of copper pot from 20 to 50 °C?

Given: s = 0.094 kcal/kg°C, m = 750 g = 0.750kg, T1 = 20°C and T2 = 50°C Rise in temperature, ∆T = T2 – T1 = 50 – 20 = 30°C To find: Heat required (Q) Formula: Q =...

2 Answers 3 views
The amount bf heat requited to raise the temperature of the unit mass of the substance by one unit is called …………………. 

D) specific heat

2 Answers 1 views
Which of the following equation is used to determine howmuch heat is needed to raise the temperature of a certain

C) Q = mS Δt

2 Answers 1 views
Statement I : The amount of heat required to raise the temperature of unit mass of substance

Correct option is  A) Both are true

2 Answers 1 views
The amount of heat required to raise the temperature of 1 gm of water to 1°C is ………….. (in Jouls) 

Correct option is  A) 4.186

2 Answers 1 views
The latent heat of vapourization of liquid of “m”gm when the heat energy of “Q” calories is supplied to change its state from liquid to gas is ……………… 

 Q = mL so, L = Q/m. Hence, the correct option is (B) Q/m

2 Answers 1 views
The latent heat of vapourization of liquid of “m”gm when the heat energy of “Q” calories is supplied to change its state from liquid to gas is ………………  2 Answers 1 views
X g of water is heated from y° C to z° C. The quantity of heat required in calories ……………………. 

Correct option is  C) x(z – y)

2 Answers 2 views
The heat energy required to raise the temperature of 20 kg of water from 25° C to 75° C. 

Correct option is  D) 106 cal

2 Answers 1 views
__________ amount of heat is required to raise the temperature of 100 g of kerosene from 10 °C to 30 °C 

Correct option is: (B) 1.02 kcal

2 Answers 1 views
X