Questions
The power of a refrigerator which freezes
detailed solution
Correct option is C
⇒200g water at 100c→ice at 00C Q1=msΔt=200×1×10=2000cal ⇒00C water →00C ice Q2=mL=200×80=16000 p=Et=Q1+Q2t=18000200×cal⇒90×4.2=378wattTalk to our academic expert!
Similar Questions
The melting temperature of a certain mass of a solid object is 20°C. When a heat Q is added to the object, its material melts. When an additional amount of Q heat is added the material transforms to its liquid state at 50°C. Find the ratio of specific latent heat of fusion (in J/g) to the specific heat capacity of the liquid (in J g-1 °C-1) for the material.
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
