Question:
What is the total heat needed to change 1g of water from -10°C to 110°C at 1 atm?
\[
\Delta H_{fusion} = 80 \, \text{cal/g}, \Delta H_{vaporisation} = 540 \, \text{cal/g}, \text{specific heat of ice and steam are 0.5 cal/g°C}
\]
What is the total heat needed to change 1g of water from -10°C to 110°C at 1 atm?
\[
\Delta H_{fusion} = 80 \, \text{cal/g}, \Delta H_{vaporisation} = 540 \, \text{cal/g}, \text{specific heat of ice and steam are 0.5 cal/g°C}
\]
Show Hint
Remember to account for the different phases (solid, liquid, gas) and use the appropriate heat of fusion or vaporisation.
Updated On: Mar 30, 2025
- -730 cal
- -630 cal
- 630 cal
- 730 cal
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
The total heat is the sum of the heat required to raise the temperature of ice, melt it, raise the temperature of water, and then vaporise it.
Was this answer helpful?
0
0
Top Questions on Thermodynamics
- Given are statements for certain thermodynamic variables: \begin{itemize} \item[(A)] Internal energy, volume \( V \), and mass \( M \) are extensive variables. \item[(B)] Pressure \( P \), temperature \( T \), and density \( \rho \) are intensive variables. \item[(C)] Volume \( V \), temperature \( T \), and density \( \rho \) are intensive variables. \item[(D)] Mass \( M \), temperature \( T \), and internal energy are extensive variables. \end{itemize} Choose the correct answer from the options given below:
- JEE Main - 2025
- Physics
- Thermodynamics
- For a diatomic gas, if \( \gamma_1 = \frac{C_P}{C_V} \) for rigid molecules and \( \gamma_2 = \frac{C_P}{C_V} \) for another diatomic molecules, but also having vibrational modes. Then, which one of the following options is correct? (where \( C_P \) and \( C_V \) are specific heats of the gas at constant pressure and volume)
- JEE Main - 2025
- Physics
- Thermodynamics
- Match List - I with List - II. List - I (Partial Derivatives) \(and\) List - II (Thermodynamic Quantity)
In the light of the above statements, choose the correct answer from the options given below:- JEE Main - 2025
- Chemistry
- Thermodynamics
- A container of fixed volume contains a gas at 27°C. To double the pressure of the gas, the temperature of the gas should be raised to °C.
- JEE Main - 2025
- Physics
- Thermodynamics
- The work done in an adiabatic change in an ideal gas depends upon:
- JEE Main - 2025
- Physics
- Thermodynamics
View More Questions
Questions Asked in IPU CET exam
Which of the following is an octal number equal to decimal number \((896)_{10}\)?
- IPU CET - 2023
- Binary Operations
The additional 8% human genome sequenced account for ........ million new letters added to the existing sequenced DNA.
- IPU CET - 2023
- Genomics, proteomics, metabolomics
- Which of the following statements are true or false?
I. Endemic when it spreads across the globe is called a pandemic.
II. Epidemic is a disease that is permanently present in a region or population
Which of the following options is correct?- IPU CET - 2023
- Epidemiology
- Which one among the following is not a characteristic of 'big data'?
- IPU CET - 2023
- Big Data
- Blockchain Technology has the following hall mark features/s:
- IPU CET - 2023
- Blockchain Technology
View More Questions