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  2. Bulk temperature - Wikipedia

    en.wikipedia.org/wiki/Bulk_temperature

    Bulk temperature. In thermofluids dynamics, the bulk temperature, or the average bulk temperature in the thermal fluid, is a convenient reference point for evaluating properties related to convective heat transfer, particularly in applications related to flow in pipes and ducts. The concept of the bulk temperature is that adiabatic mixing of ...

  3. Temperature - Wikipedia

    en.wikipedia.org/wiki/Temperature

    Historically, the temperature of the triple point of water was defined as exactly 273.16 K. Today it is an empirically measured quantity. The freezing point of water at sea-level atmospheric pressure occurs at very close to 273.15 K (0 °C).

  4. Global surface temperature - Wikipedia

    en.wikipedia.org/wiki/Global_surface_temperature

    The current annual GMST is about 15 °C (59 °F), [6] though monthly temperatures can vary almost 2 °C (4 °F) above or below this figure. [7] The data clearly shows a rising trend in global average surface temperatures (i.e. global warming) and this is due to emissions of greenhouse gases from human activities.

  5. Atmospheric temperature - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_temperature

    Average yearly temperature is 22.4 °C, ranging from an average minimum of 12.2 °C to a maximum of 29.9 °C. The average temperature range is 11.4 °C. [6] Variability throughout the year is small (standard deviation of 2.31 °C for the maximum monthly average and 4.11 °C for the minimum). The graph also shows the typical phenomenon of ...

  6. Climate of Kosovo - Wikipedia

    en.wikipedia.org/wiki/Climate_of_Kosovo

    The average temperature of Kosovo for a year is 9.5 °C (49.1 °F). The warmest month is July with 28.3 °C (82.9 °F), the coldest is January with −18.7 °C (−1.7 °F). The highest average temperature for a year is in Prizren (12 °C (54 °F)), the lowest temperature in Podujevë (9 °C (48 °F)). Except Prizren and Istog, all other ...

  7. Thermodynamic temperature - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_temperature

    Thermodynamic temperature is a quantity defined in thermodynamics as distinct from kinetic theory or statistical mechanics.. Historically, thermodynamic temperature was defined by Lord Kelvin in terms of a macroscopic relation between thermodynamic work and heat transfer as defined in thermodynamics, but the kelvin was redefined by international agreement in 2019 in terms of phenomena that are ...

  8. List of countries by average yearly temperature - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries and sovereign states by temperature. Average yearly temperature is calculated by averaging the minimum and maximum daily temperatures in the country, averaged for the years 1991 – 2020, from World Bank Group , derived from raw gridded climatologies from the Climatic Research Unit .

  9. Adiabatic process - Wikipedia

    en.wikipedia.org/wiki/Adiabatic_process

    The model assumptions are: the uncompressed volume of the cylinder is one litre (1 L = 1000 cm 3 = 0.001 m 3); the gas within is the air consisting of molecular nitrogen and oxygen only (thus a diatomic gas with 5 degrees of freedom, and so γ = ⁠ 7 / 5 ⁠); the compression ratio of the engine is 10:1 (that is, the 1 L volume of uncompressed ...