Grade 10Thermal Physics
What will be the final temperature if 50g of water at exactly 0°c is added to 250g of water at 90°c?
What will be the final temperature if 50g of water at exactly 0°c is added to 250g of water at 90°c?
2 Answers
Mohamed Harithkhan
If heat lose/gain from the environment,
Heat lost by 250g of water at 90°c will be equal to heat gained by 50g of water at exactly 0°c.
Let’s take final temperature as t
So, m1*S*Δt1 = m2*S*Δt2
250 * (90 – t) = 50 * (t – 0)
300t = 90*250
t = 75°c
So, final temperature is 75°c
Mohamed Harithkhan
If heat lose/gain from the environment are neglected,
Heat lost by 250g of water at 90°c will be equal to heat gained by 50g of water at exactly 0°c.
Let’s take final temperature as t
So, m1*S*Δt1 = m2*S*Δt2
250 * (90 – t) = 50 * (t – 0)
300t = 90*250
t = 75°c
So, final temperature is 75°c
Other Related Questions on thermal physics
A A mole of helium gas initially at stp undergoes an isovolumetric process in which its pressure falls to half its initial value. The work done by gas is
A A mole of helium gas initially at stp undergoes an isovolumetric process in which its pressure falls to half its initial value. The work done by gas is
thermal physics
Last Activity: 4 Years ago
Please help me with the answer of this question related to radiation graph
Please help me with the answer of this question related to radiation graph
thermal physics
Last Activity: 4 Years ago