Question

Photons of infrared radiation are responsible for much of the warmth we feel when holding our hands before a fire. These photons will also warm objects. How many infrared photons with a wavelength of $1.5 \times 10^{-6} {m}$ must be absorbed by the water to warm a cup of water $(175 {g})$ from $25.0^{\circ} {C}$ ?

Name: Photons of infrared radiation are responsible for much of the warmth we feel when holding our hands before a fire. These photons will also warm objects. How many infrared photons with a wavelength of 1.5 × 10^-6m must be absorbed by the water to warm a cup of water (175 g) from 25.0^∘C ?
Uploaded: 2023-09-20T18:31:34-08:00
Duration: 3 min 18 s
Channel: Adi S
Description: Photons of infrared radiation are responsible for much of the warmth we feel when holding our hands before a fire. These photons will also warm objects. How many infrared photons with a wavelength of 1.5 × 10^-6m must be absorbed by the water to warm a cup of water (175 g) from 25.0^∘C ?

          Photons of infrared radiation are responsible for much of the warmth we feel when holding our hands before a fire. These photons will also warm objects. How many infrared photons with a wavelength of $1.5 \times 10^{-6} {m}$ must be absorbed by the water to warm a cup of water $(175 {g})$ from $25.0^{\circ} {C}$ ?

Added by Anthony L.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

09/20/2023

Step 1

Given: Mass of water (m) = 175 g Specific heat capacity of water (c) = 4.18 J/g°C Initial temperature (T1) = 25.0°C Final temperature (T2) = 100.0°C (boiling point of water) Change in temperature (ΔT) = T2 - T1 = 100.0 - 25.0 = 75.0°C Now, we can calculate the Show more…

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Photons of infrared radiation are responsible for much of the warmth we feel when holding our hands before a fire. These photons will also warm objects. How many infrared photons with a wavelength of $1.5 \times 10^{-6} {m}$ must be absorbed by the water to warm a cup of water $(175 {g})$ from $25.0^{\circ} {C}$ ?