Question

Why does an ice cube feel cold to your hand?

   Why does an ice cube feel cold to your hand?

Living by Chemistry

Living by Chemistry

Angelica M. Stacy 2nd Edition

Chapter 18, Problem 1

Instant Answer

Solved by Expert Michelle Pribek

10/17/2020

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This can be represented as: \[ T_{body} = 37^{\circ}C \] Show more…

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Why does an ice cube feel cold to your hand?

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Key Concepts

Temperature Difference

A key driving force for heat transfer is the difference in temperature between two bodies. The greater the temperature difference between your warm hand and the cold ice cube, the faster heat will flow from your hand to the ice, which contributes significantly to the sensation of coldness.

Thermal Equilibrium

This concept describes the state reached when two contacting bodies eventually stabilize at the same temperature. Initially, when your hand contacts the ice cube, energy flows until both reach a balance, although in everyday situations complete equilibrium is often not reached before additional factors come into play.

Thermal Conductivity

Thermal conductivity is a property of materials that indicates how quickly they can conduct heat. In the context of touching an ice cube, both your skin and the ice have their own thermal conductivities, which affect the speed at which heat is transferred from your hand to the ice cube.

Heat Transfer

This concept refers to the movement of thermal energy from a warmer object to a cooler one. When you touch an ice cube, heat transfers from your hand, which is at a higher temperature, to the colder ice cube, making the interface feel cool as your hand loses energy.

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