(A) The density of water is maximum at $4^\circ C$.To convert Celsius to Fahrenheit, use the formula: $F = C \times (9/5) + 32$.$F = 4 \times (1.8) +

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$4^\circ C, 39.2^\circ F, 277.15 K$

(A) The density of water is maximum at $4^\circ C$.To convert Celsius to Fahrenheit, use the formula: $F = C \times (9/5) + 32$.$F = 4 \times (1.8) + 32 = 7.2 + 32 = 39.2^\circ F$.To convert Celsius to Kelvin, use the formula: $K = C + 273.15$.$K = 4 + 273.15 = 277.15 K$.Thus, the values are $4^\circ C$, $39.2^\circ F$, and $277.15 K$.

Class 11 Physics 10-1.Thermometry, Thermal Expansion and Calorimetry Temperature and Temperature scales

Medium

At what temperature is the density of water maximum? Provide the value in $^\circ C$, $^\circ F$, and $K$.

A
$4^\circ C, 39.2^\circ F, 277.15 K$
B
$0^\circ C, 32^\circ F, 273.15 K$
C
$10^\circ C, 50^\circ F, 283.15 K$
D
$4^\circ C, 37.2^\circ F, 277.15 K$

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10-1.Thermometry, Thermal Expansion and Calorimetry

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At what temperature is the density of water maximum? Provide the value in $^\circ C$, $^\circ F$, and $K$.

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$Assertion :$ In a pressure cooker,water is brought to a boil. The cooker is then removed from the stove. Now,upon removing the lid of the pressure cooker,the water starts boiling again.
$Reason :$ The impurities in water bring down its boiling point.