Some of the gases have low emissive power and absorptivity. They are considered practically diathermanous. Which of the following option is true?

Some of the gases have low emissive power and absorptivity. They are c

1.	Some of the gases have low emissive power and absorptivity. They are considered practically diathermanous. Which of the following option is true?
A.	Ammonia
B.	Helium
C.	Carbon-dioxide
D.	Methane
Answer» C. Carbon-dioxide

Discussion

No Comment Found

Related MCQs

Consider a beam of monochromatic radiation at wavelength λ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity is given by
Which one of the following is not extremely inert to thermal radiation?
The monochromatic absorption coefficient depends upon(i) Temperature(ii) Time(iii) Pressure(iv) WavelengthIdentify the correct option
Consider a beam of monochromatic radiation at wavelength λ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity
Consider an enclosure formed by three surfaces having the following values of shape factors, emissivities and temperaturesSurface 1 i.e. curved cylindrical has an emissivity 0.75 and temperature 800 KSurface 2 i.e. closing disc has an emissivity 0.8 and temperature 700 KSurface 3 i.e. closing disc has an emissivity 0.8 and temperature 700 KThe closing flat discs are 25 mm in diameter and they have interspacing distance equal to 100 mm. If the shape factor between these two identical discs is 0.05, calculate the net rate of radiant heat flow from the curve surface to each of the closing end surface
WHICH_ONE_OF_THE_FOLLOWING_IS_NOT_EXTREMELY_INERT_TO_THERMAL_RADIATION??$
Consider_a_beam_of_monochromatic_radiation_at_wavelength_‚âà√≠¬¨‚Ñ¢_that_enters_a_layer_of_absorbing_gas._As_the_beam_passes_through_the_gas_layer,_its_intensity_is_given_by$#
The monochromatic absorption coefficient depends upo?
When a gas or vapor is in the process of oxidation and combustion, it is called as
Consider a beam of monochromatic radiation at wavelength ‚âà√≠¬¨‚Ñ¢ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity$

Some of the gases have low emissive power and absorptivity. They are considered practically diathermanous. Which of the following option is true?

Discussion

No Comment Found

Related MCQs

Reply to Comment