Physics WAEC

A solid of mass 0.5kg initially at 50oC melts at 60oC. Calculate the quantity of heat required to melt it completely. [specific heat capacity of the solid =2.0KJ kg-1K-1][Specific latent heat of fusion of solid =1.0 KJ kg-1]

A. 1500J
B. 10000J
C. 10500J
D. 15000J

Correct Answer: Option C

C. 10500J

Explanation

Q = ML + Cθ

= 0.5 x 1000 + 0.5 x 2000 x 10

= 10500

SEE ALSO At what distance from a simple microscope must an object be placed so that the image 5 times the size of the object is produced 20cm from the lens?
Sunday

Share
Published by
Sunday
Tags: physics
4 years ago

Recent Posts

OOU JUPEB Admission For Agricultural Extension

Do you want to study Agricultural Extension in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Agricultural Economics

Do you want to study Agricultural Economics in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Cooperative and Business Management

Do you want to study Cooperative and Business Management in OOU? Before you apply for…

11 months ago

OOU JUPEB Admission For Home and Hotel Management

Do you want to study Home and Hotel Management in OOU? Before you apply for…

11 months ago

OOU JUPEB Admission For Animal Production

Do you want to study Animal Production in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Crop Production

Do you want to study Crop Production in OOU? Before you apply for the OOU…

11 months ago