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A temperature of –40^(@)C shall be equal...

A temperature of `–40^(@)C` shall be equal to

A

233 K

B

`–40^(@)F`

C

`–32^(@)F`

D

`2^(@)F`

Text Solution

AI Generated Solution

The correct Answer is:
To convert a temperature from degrees Celsius to Kelvin, we use the formula: \[ K = °C + 273.15 \] Where: - \( K \) is the temperature in Kelvin - \( °C \) is the temperature in degrees Celsius ### Step-by-Step Solution: 1. **Identify the given temperature in Celsius**: - The given temperature is \( -40°C \). 2. **Use the conversion formula**: - Substitute \( -40 \) into the formula: \[ K = -40 + 273.15 \] 3. **Perform the addition**: - Calculate \( -40 + 273.15 \): \[ K = 233.15 \] 4. **Round the result if necessary**: - In many contexts, you can round to the nearest whole number, but here we keep it as \( 233.15 \) Kelvin. 5. **Final result**: - Therefore, \( -40°C \) is equal to \( 233.15 K \). ### Answer: The temperature of \( -40°C \) is equal to \( 233.15 K \). ---
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Knowledge Check

  • A certainn freezing process requires that room temperature be lowered from 40^(@)C at a rate of 5^(@)C at every hour. Find the room temperature 10 hours after the freezing process begins.

    A
    `-12^(@)C`
    B
    `-10^(@)C`
    C
    `10^(@)C`
    D
    `9^(@)C`