Alerts
Wishlist
Cart
Sign In
Categories
Current Affairs & GK
Current Affairs
Show All Current Affairs & GK
eBooks
General Aptitude
Arithmetic Aptitude
Data Interpretation
Show All General Aptitude
General Knowledge
Basic General Knowledge
General Science
Show All General Knowledge
Medical Science
Anatomy
Biochemical Engineering
Biochemistry
Biotechnology
Microbiology
Show All Medical Science
Technical
Database
Digital Electronics
Electronics
Networking
Show All Technical
Verbal and Reasoning
Logical Reasoning
Verbal Ability
Verbal Reasoning
Show All Verbal and Reasoning
How much heat is required to raise the temperature of 250 g of water from 25°C t
Practice Questions
Q1
How much heat is required to raise the temperature of 250 g of water from 25°C to 75°C? (Specific heat of water = 4.2 J/g°C) (2020)
5250 J
4200 J
2500 J
1000 J
Questions & Step-by-Step Solutions
How much heat is required to raise the temperature of 250 g of water from 25°C to 75°C? (Specific heat of water = 4.2 J/g°C) (2020)
Steps
Concepts
Step 1: Identify the mass of water. In this case, it is 250 grams.
Step 2: Identify the specific heat of water, which is 4.2 J/g°C.
Step 3: Determine the initial temperature of the water, which is 25°C.
Step 4: Determine the final temperature of the water, which is 75°C.
Step 5: Calculate the change in temperature by subtracting the initial temperature from the final temperature: 75°C - 25°C = 50°C.
Step 6: Use the formula for heat required: Heat = mass × specific heat × change in temperature.
Step 7: Plug in the values: Heat = 250 g × 4.2 J/g°C × 50°C.
Step 8: Calculate the result: 250 × 4.2 × 50 = 5250 J.
Specific Heat Capacity
– The amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius.
Heat Transfer Calculation
– Using the formula Q = mcΔT to calculate the heat energy required for temperature changes.
Unit Consistency
– Ensuring that all units are consistent (grams, degrees Celsius, joules) in calculations.
‹
Biology (School & UG)
Chemistry (School & UG)
Civil Engineering
Commerce & Accountancy
Computer Science & IT
Current Affairs & GK
Data Structures & Algorithms
eBooks
Electrical & Electronics Engineering
English (School)
General Aptitude
General Knowledge
General Knowledge & Current Affairs
Languages & Literature
Law & Legal Studies
Major Competitive Exams
Mathematics (School)
Mechanical Engineering
Medical Science
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Social Science (School)
Technical
Verbal and Reasoning
Vocational & Skill Development
›
Soulshift Feedback
×
On a scale of 0–10, how likely are you to recommend
The Soulshift Academy
?
0
1
2
3
4
5
6
7
8
9
10
Not likely
Very likely
✕
↑