A thermally insulated, closed copper vessel contains water at 15ºC. When the vessel is shaken vigorously for 15 minutes, the temperature rises to 17ºC. The mass of the vessel is 100g and that of the water is 200g. The specific heat capacities of copper and water are 420 J/kg-K and 4200 J/kg-K respectively. Neglect any thermal expansion.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Zero, because there is no heat transfer from outside.
W = 100 × 10 –3 × 420 × 2 + 200 × 10 –3 × 4200 × 2 = 1764 J.
Δ U = 1764 J
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A non-isotropic solid metal cube has coefficients of linear expansion as: 5 × 10 –5 /°C along the x…
M grams of steam at 100°C is mixed with 200g of ice at its melting point in a thermally insulated c…
Three containers C 1 , C 2 and C 3 have water at different temperatures. The table below shows the …
A cylindrical isotropic solid of coefficient of linear expansion α and density ρ floats in a liquid…
In the following question column - I represents some physical quantities & column-II represents the…
When two non-reactive samples at different temperatures are mixed in an isolated container of negli…