Why is helium used in balloons instead of hydrogen

Asked by admin @ 17/08/2021 in Chemistry viewed by 326 People

Helium gas is used in gas balloons instead of hydrogen gas because it is (a) lighter than hydrogen (b) more abundant than hydrogen (c) noncombustible (d) more stable

Answered by admin @ 17/08/2021

(a) lighter than hydrogen

Why helium is used in balloons in place of hydrogen

Asked by admin @ 03/08/2021 in Physics viewed by 264 persons

Why helium is used in balloons in place of hydrogen?

Why is helium preferred to hydrogen for filling balloons

Asked by admin @ 23/08/2021 in Chemistry viewed by 331 persons

Why is helium preferred to hydrogen for filling balloons?

Why hydrogen is not used as a fuel

Asked by admin @ 31/08/2021 in Science viewed by 270 persons

Why is hydrogen not used as domestic fuel even though it is has the highest calorific value?

Helium atom is two times heavier than hydrogen molecule

Asked by admin @ 20/08/2021 in Chemistry viewed by 327 persons

Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is(a) two times that of a hydrogen molecule.(b) same …

A certain mass of hydrogen is changed to helium

Asked by admin @ 13/08/2021 in Science viewed by 282 persons

A certain mass of Hydrogen is changed to Helium by the process of fusion. The mass defect in fusion reaction is 0.02866 u. The energy liberated per u is – …

Why is buffer used in gel electrophoresis instead of water

Asked by admin @ 03/08/2021 in Chemistry viewed by 414 persons

Why is buffer used in gel electrophoresis instead of water?

The product of nuclear fusion is _____. helium nitrogen oxygen hydrogen

Asked by maham237 @ 14/01/2021 in Chemistry viewed by 336 persons

Why use a volumetric pipette instead of a graduated cylinder

Asked by admin @ 09/11/2021 in Chemistry viewed by 364 persons

What effect will there be on the accuracy of a measurement if you use a volumetric pipet that is not completely dry but instead contains a few drops of the …

How many balloons can a 12 inch helium tank fill

Asked by admin @ 28/10/2021 in Chemistry viewed by 333 persons

How many 3-liter balloons could the 12-L helium tank pressurized to 160 atm fill? Keep in mind that an "exhausted" helium tank is not empty. In other words, once the …

A weather balloon filled with hydrogen at 1 atm

Asked by admin @ 23/08/2021 in Chemistry viewed by 291 persons

A weather balloon filled with hydrogen at 1 atm and 27°C has volume equal to 12000 litres. On ascending it reaches a place where temperature is - 23°C andpressure …

A balloon is filled with hydrogen at room temperature

Asked by admin @ 10/08/2021 in Chemistry viewed by 304 persons

A balloon is filled with hydrogen at room temperature. It will burst if the pressure exceeds 0.2 bar .at 1bar pressure if the gas occupies 2.27 litre volume ,upto what …

Can we use eno instead of baking soda in cake

Asked by admin @ 05/08/2021 in Chemistry viewed by 333 persons

Can i use eno instead of baking soda in baking soda volcano

A hot air balloon holds 2200 cubic meters of helium

Asked by maham237 @ 24/07/2021 in Mathematics viewed by 384 persons

The density of helium is 0.1785 kilograms per cubic meter. How many kilograms of helium does the balloon contain, rounded to the nearest tenth of a kilogram? (5 points) 2,199.8 …

How many balloons can a tank of helium fill

Asked by maham237 @ 11/01/2021 in Chemistry viewed by 311 persons

Think about a small helium tank the can fill 50 balloons. What must be true about the helium in the tank compared to the helium in the balloons?Compare Charles' Law …

When should back titration be used instead of direct titration

Asked by admin @ 22/11/2021 in Chemistry viewed by 268 persons

In this experiment, direct titration of a base with acid is not used. Instead, a back titration of a base with excess acid will be employed. Why? a. The CO2 …