The Question is from neet-physics thermal-properties-of-matter measurment-of-temperature, and it was created by the author SUBHANI

Question

What is absolute zero in Celsius?

SUBHANI · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Absolute zero and temperature scales
 **Related Topics**: Kelvin scale, Celsius scale, thermodynamic temperature
 **Prerequisites**: Understanding of temperature scales and their conversions.
## SOLUTION PATHWAY
**Given Information**:
  The question asks for the value of absolute zero in Celsius.
  Absolute zero is the lowest possible temperature.
**Method & Steps**:
 1. Understand the relationship between Kelvin and Celsius scales.
  Reasoning: Absolute zero is defined as 0 Kelvin (0 K).  We need to convert this to Celsius.
  Formula/Rule: $T_C = T_K - 273.15$, where $T_C$ is temperature in Celsius and $T_K$ is temperature in Kelvin.
 2. Substitute the value of absolute zero in Kelvin into the formula.
  Working: $T_C = 0 K - 273.15 = -273.15\u00b0C$
  Key Point:  The conversion formula ensures accurate translation between Kelvin and Celsius.
 3. State the final answer.
  Result: Absolute zero is -273.15\u00b0C
  Verification: The result is consistent with the known value of absolute zero in the Celsius scale.
 ## OPTION ANALYSIS
A :x: 0°C is the freezing point of water, not absolute zero.
B :x: 100°C is the boiling point of water, not absolute zero.
C ✓: -273.15°C is the correct value for absolute zero in Celsius.
D :x: 273.15°C is the equivalent of 0 K in Celsius. This is the opposite.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing Celsius and Kelvin scales: Remembering the conversion formula is crucial.
  2.Incorrectly applying the conversion formula: Double-check the formula and ensure correct substitution.
 **Quick Tips**:
  1.Remember that absolute zero is 0 K, and use the conversion formula to find its Celsius equivalent.
  2.Visualize the temperature scales on a diagram to understand the relationship between Kelvin and Celsius.

SUBHANI · Answer

0°C

SUBHANI · Answer

100°C

SUBHANI · Answer

The correct Option is "-273.15°C"

SUBHANI · Answer

273.15°C

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