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2. List of refrigerants - Wikipedia

   en.wikipedia.org/wiki/List_of_refrigerants

   Refrigerant concentration limit / immediately dangerous to life or health in parts per million (volume per volume) and grams per cubic meter Molecular mass in atomic mass units Normal boiling points for pure substances, bubble and dew points for zeotropic blends, or normal boiling point and azeotropic temperature for the azeotropic blends, at ...

3. Coupon - Wikipedia

   en.wikipedia.org/wiki/Coupon

   Believed to be the first coupon ever, this ticket for a free glass of Coca-Cola was first distributed in 1888 to help promote the drink. By 1913, the company had redeemed 8.5 million tickets. [6] Coca-Cola's 1888-issued "free glass of" is the earliest documented coupon. [6] [7] Coupons were mailed to potential customers and placed in magazines ...

4. Heat pump and refrigeration cycle - Wikipedia

   en.wikipedia.org/wiki/Heat_pump_and...

   Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]

5. Refrigerator - Wikipedia

   en.wikipedia.org/wiki/Refrigerator

   Food in a refrigerator with its door open. A refrigerator, commonly shortened to fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. [1]

6. Costco - Wikipedia

   en.wikipedia.org/wiki/Costco

   Costco Wholesale Corporation is an American multinational corporation which operates a chain of membership-only big-box warehouse club retail stores. [5] As of 2021, Costco is the third-largest retailer in the world . [ 6 ]

7. Texas - Wikipedia

   en.wikipedia.org/wiki/Texas

   Based on U.S. Census Bureau data released in February 2011, for the first time in recent history, Texas's White population is below 50% (45%) and Hispanics grew to 38%. Between 2000 and 2010, the total population grew by 20.6%, but Hispanics and Latino Americans grew by 65%, whereas non-Hispanic Whites grew by only 4.2%. [226]