मराठी

Correct the Following Statement: Standard Temperature is 25°C.

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प्रश्न

Correct the following statement:

The standard temperature is 25°C.

एका वाक्यात उत्तर
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उत्तर

The standard temperature is 0°C.

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Standard Temperature Pressure (S.T.P.)
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Study of Gas Laws - Exercise 7 (A) [पृष्ठ १२६]

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सेलिना Concise Chemistry [English] Class 9 ICSE
पाठ 7 Study of Gas Laws
Exercise 7 (A) | Q 24.4 | पृष्ठ १२६

संबंधित प्रश्‍न

What is the volume occupied by 16g of sulphur dioxide. gas at STP?


Concentrated nitric acid oxidizes phosphorous to phosphoric acid according to the following equation :
P + 5HNO3 → H3PO4 + H2O + 5NO2
What will be the volume of steam at the same time measured at 760mm of Hg pressure and 273°C? [H=1, N=14, O=16, P=31]


A gas of 32 g mass has a volume of 20 litres at STP. Calculate the gram molecular weight of the gas.


Calculate the volume of HCl gas formed and chlorine gas required when 40 ml of methane reacts completely with chlorine at S.T.P.

\[\ce{CH4 + 2Cl2 → CH2Cl2 + 2HCl}\]


Calculate the mass and volume of oxygen at S.T.P., which will be evolved on electrolysis of 1 mole (18 g) of water.


The equation given below relates the manufacture of sodium carbonate (molecular weight of Na2CO3 = 106).

  1. NaCl+NH3+ CO2+ H2O→ NaHCO3+NH4Cl
  2. 2NaHCO3→ Na2CO3+H2O + CO2

Equations (1) and (2) are based on the production of 21.2 g of sodium carbonate.

(a) What mass of sodium hydrogen carbonate must be heated to give 21.2 g of sodium carbonate?

(b) To produce the mass of sodium hydrogen carbonate calculate in (a), what volume of carbon dioxide, measured at S.T.P. would be required?


The following experiment was performed in order to determine the formula of a hydrocarbon. The hydrocarbon X is purified by fractional distillation.

0.145 g of X was heated with dry copper (II) oxide and 224 cm3 of carbon dioxide was collected at S.T.P.

Which elements does X contain?


A cylinder of 20 liters capacity contains gas at 100 atmospheric pressure. How many flasks of 200 cm3capacity can be filled from it at 1-atmosphere pressure, temperature remaining constant?


Write the value of:

the standard temperature in:

(i) °C 
(ii) K


From the equation

\[\ce{3Cu + 8HNO3 -> 3Cu(NO3)2 + 4H2O + 2NO}\]

(Atomic mass Cu = 64, H = 1, N = 14, O = 16)

Calculate the volume of nitric oxide at STP that can be collected.


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