Calculate the change in internal energy (in kJ) when a 5 kg Cast Iron pot is heated from 20°C (65°F) to 210°C (410°F).

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
icon
Related questions
Question
**Problem Statement:**

1. Calculate the change in internal energy (in kJ) when a 5 kg cast iron pot is heated from 20°C (65°F) to 210°C (410°F).

**Explanation:**

To calculate the change in internal energy, we can use the formula:

\[ \Delta U = mc\Delta T \]

Where:
- \( m \) is the mass of the object (5 kg)
- \( c \) is the specific heat capacity of cast iron (approximately 0.46 kJ/kg°C)
- \( \Delta T \) is the change in temperature (210°C - 20°C)

Substitute the values and calculate to find the change in internal energy. 

This problem involves basic thermodynamics concepts and is useful in understanding how energy transfer works during heating processes.
Transcribed Image Text:**Problem Statement:** 1. Calculate the change in internal energy (in kJ) when a 5 kg cast iron pot is heated from 20°C (65°F) to 210°C (410°F). **Explanation:** To calculate the change in internal energy, we can use the formula: \[ \Delta U = mc\Delta T \] Where: - \( m \) is the mass of the object (5 kg) - \( c \) is the specific heat capacity of cast iron (approximately 0.46 kJ/kg°C) - \( \Delta T \) is the change in temperature (210°C - 20°C) Substitute the values and calculate to find the change in internal energy. This problem involves basic thermodynamics concepts and is useful in understanding how energy transfer works during heating processes.
Expert Solution
Step 1: Determine the given variable

Mechanical Engineering homework question answer, step 1, image 1

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Knowledge Booster
Available Energy
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY